Genzyme Corp Watch

from 10-K 12 pages Amendment

from 10-K 15 pages Have Appeared

from 10-K 8 pages [Hw:] 6 [Illegible] D8868 Province of Antwerp / Genzyme Number of Enclosures: None Lease Establishment Rep: [Hw:] 924 in the Year Two Thousand Ten on the Twenty-First of October [Hw:] 1 Copy Appeared Before Me, Katrien Eerens, Associated Notary Public Based in Geel: 1. the Province of Antwerp, With Offices at 2018 Antwerp, Koningin Elisabethlei 22, With Business Number Vat Be 0207.725.597, Legal Entity Register of Antwerp, Represented Herein By: - Mr. Helsen Koenraad Alfons Gaby Frans, Member of the Provincial Executive, Born in Deurne (Antwerp) on June 7, 1961, Residing at 2950 Kapellen, Zilverlindendreef 2, Bus 1 (Id Card Number 590-7216991-23 — National Id Number 61.06.07.057-86); and - Ms. Jeuninckx Huguette Yolande Marina, Public Servant at the Antwerp Provincial Executive, Born in Antwerp on August 17, 1962, Residing at 2018 Antwerp, Justitiestraat 27, Bus 17 (Id Card Number 590-3346509-35 — National Id Number 62.08.17.444-16);

from 10-K 12 pages In the Year Two Thousand Two

from 10-K 13 pages The Year Two Thousand and One

from 8-K 63 pages Contingent Value Rights Agreement by and Between Sanofi-Aventis and [Trustee] Dated as of [ • ], 2011

from 425 63 pages Contingent Value Rights Agreement by and Between Sanofi-Aventis and [Trustee] Dated as of [ • ], 2011

from 10-Q 16 pages License Agreement

from 10-Q 34 pages Master Supply Agreement

from 10-Q 5 pages Genzyme Corporation 2007 Director Equity Plan

from 10-Q 8 pages Genzyme Corporation 2004 Equity Incentive Plan

from 10-Q 3 pages Supplemental Confirmation

from 10-Q 20 pages To: Genzyme Corporation 500 Kendall Street, Cambridge, Ma 02142 a/C: 042227413 From: Goldman, Sachs & Co. Re: Accelerated Stock Buyback Ref. No: As Provided in the Supplemental Confirmation Date: June 17, 2010

from 10-Q 3 pages First Amendment to Lease

from 8-K 23 pages Genzyme Corporation $500,000,000 3.625% Senior Notes Due 2015 $500,000,000 5.000% Senior Notes Due 2020 Registration Rights Agreement

from 10-Q/A 8 pages Genzyme Corporation (The “Company”) [Tier I] Performance Restricted Stock Unit Award Agreement (The “Award Agreement”) Under Genzyme Corporation 2004 Equity Incentive Plan (The “Equity Plan”) and Senior Executive Long-Term Incentive Plan

from 10-Q/A 5 pages Genzyme Corporation (The “Company”) Senior Executive Long -Term Incentive Plan

from 10-Q/A 5 pages Genzyme Corporation (The “Company”) Senior Executive Annual Incentive Plan

from 10-Q 8 pages Genzyme Corporation (The “Company”) [Tier I] Performance Restricted Stock Unit Award Agreement (The “Award Agreement”) Under Genzyme Corporation 2004 Equity Incentive Plan (The “Equity Plan”) and Senior Executive Long-Term Incentive Plan

from 10-Q 5 pages Genzyme Corporation (The “Company”) Senior Executive Long -Term Incentive Plan